I downloaded spice model of sg3525 it is working but Pin 8 (SS) is not working and showing 54.7 V without connecting it. is some problem with spice model?

Mod: link to old thread.
https://forum.allaboutcircuits.com/threads/sg3525a-ltpice-model.171995/post-1540936

 

If it's showing 54.7 V with no connections then it could be unconnected.
Try editing the pin then re-connect it.

 

Hiasif,
Please post your LTSpice asc file.
E